Internal-combustion engine.



' F. DESORT. I INTERNAL COMBUSTION ENGINE.

I APPLICATION FILED NOV. 9, I914. 1,147,313,

Patented July 20, 1915.

I F. mom. 7 M

INTERNAL COMBUSTION ENGINE. 4 APPLICATION FILED NOV. 9. 1911. v1,147,813. ljatented July 20, 1915.-

3 SHEETS-SHEET 2.

4 v 75 f5- m 72 Gay, 2 73 n "il llll llL mu II" i lllll "ll-"NHLIIHI.IIIIIIIIIHH F. DESORT. INTERNAL COMBUSTION ENGINE. APPLlCATlONFILED NOV. 9, 1914.

1,147,313. 1 v Patented July 20, 191;.

3 SHEETSSHEET 3.

rm/bnemo f 1 I lel to that of eachcylinder.

UNITED v STATES PATENT OFFICE.

FRANK Dnsom', or CLEVELAND, 01110, ASSIGNOR or ONE-HALF T0 cnoaen ErnaMANN, or. CLEVELAND, c1110.

- INTERNAL-COMBUSTION ETtIGINE.

Specification of Letters Patent.

. Application am noveinber 9. 1914. Serial No. 871,013.

tion engines, and has for its ,object to provid'e an improved engine ofa type employing a plurality of cylinders, the cylinders being arrangedin parallel relation around a common center at which the driven shaft islocated, the axis of the shaft being paral- The power is transmitted tothe'main shaft by means of radial crank shafts to which the pistons areconnected, and each crank shaft has a pinion fective arrangement for amulticylinder engine.

The cylinders are all mounted in position on the crank case, atone endthereof, so

that they are conveniently accessible, and the inlet and exhaustconnections, aswell as the connections for the cooling system, areeasily made. Each cylinder is provided withsuitablc valves which areoperated by'.

of the crank case, the symmetrical arrange- 1n parallelism around acommon center at which is, located the main shaft 19 which extendsthrough the opposite end of the crank case, having a bearing. at 20 inthe end 8 and another bearing at 21, in the opposite end. Each cylinderhas a water jacket 10, and a guide 9 for the valve rod 16. These rodsare preferably-located on the inner side of each cylinder and each rodis connected 'at its outer end, at 14, to a rocker 14 which turns on apivot 15 on a post 15 at the top of the cylinder. The inlet valve 12 andthe exhaust valve 13 are lo-- cated in the cylinder head, and the stems12 and 13 thereof extend through the head to contact with the oppositeends of the rockerlit, at surfaces 14 and l4",respecvtively, springs 12and 13 tending to .close'the valves. The inlet connections are indicatedat 30 and the exhaust connections at 31, the latter extending to anexhaust manifold 32 communicating with an outlet pipe 33, the' manifoldbeing in the form of a ring. The inlet manifold, not shown, may have asimi lar form.

The cylinders are located over' corresponding openings in the crank caseend, and each cylinder has a piston 22 connected by a rod 23 to a crank24: which is mounted in hangers 25 and 26 on the inside of the crankcase, and the outer end of each crank has a stub shaft 24 carrying apinion 27 which meshes with a large ring gear 28 mounted at 19 on arms19* projecting from the main shaft 19. Said shaft-also carries a camplate 18 which has neutral surfaces 18 permitting both valves to beclosed, raisers 18 to open the exhaust valves, and drops 18 to permitthe Patented July 20, 1915. I

the stems being "provided .with.

inlet valves to open. In the arrangement shown, having seven cylinders,there will be four rises and drops arranged symmetrically aroundthe'cam. Each valve rod has a spring 17 which holds'the roller'17 ,atthe inner end of the rod, against the cam plate and which operates therod to open the inlet valve; The rod is squared as at 16 Where is passesthrough the opening 8 in the end plate 8 of the crank case. 4

In operation, the explosion of the motive fluid in the cylinders turnsthe crank shafts which through the several pinions and the.

main gear drives the main shaft, and the cam plate 18 carried therebyoperates the valves in proper succession to control the inlet to andexhaust from the several cylinders.

The invention is not limited to the particular number of cylinders, norto the other features shown and described, except as in dicated in thefollowing claims; therefore changes may be made Within the scope of theinvention.

What I claim as new is 1. The combination of a crank case, a

- main shaft extending therein, a plurality of cylinders mounted inparallelism on one end of the crank case and around a common center atthe axis of the shaft, inlet and ex haust valves on each cylinder,operating devices for the valves of each cylinder including a rodextending through the end of the crank case, and means Within the crankcase, actuated by the main shaft, for operating said rods. r

' 2. The combination of a crank case, a main'shaft therein, a cylinderon the end of the crank case, parallel to the axis of the main shaft, arocker on the outer end of the cylinder, inlet. and exhaust valves onthe cylinder, operatively connected to said rocker, a reciprocating. rodWorking through the end of the. crank case, parallel to said cylinderand connectedat its outer end to said rocker, and. a cam plate on themain shaft,bearing against the inner end of said rod.

3. The combination of a crank case, a main shaft extending thereln, aplurality of parallel cylinders arranged in a ring on one end of thecase, around the axis of the main shaft to operate said-rods.

In testimony whereof, I afiix my signature 7,

in presence of two Witnesses.

, FRAN nnsoar.

Witnesses: '1

JOHN A. BOMMHARDT, D. C. REED.

